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1991 accord emissions co test failed ?

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  • June 25, 2012 at 11:00 am #458613
    AccordAccord
    Participant

      any one?

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    • June 25, 2012 at 11:00 am #458614
      college mancollege man
      Moderator

        High co is caused from incomplete combustion. have you tried going back_x000D_
        through since the parts you put in? try this power balance test. to see if_x000D_
        you can isolate a problem with a cylinder._x000D_
        _x000D_
        http://www.youtube.com/watch?v=bAOmUjAj … t=PL968D5A

        June 25, 2012 at 11:00 am #458615
        AccordAccord
        Participant

          no i havent

          June 25, 2012 at 11:00 am #458616
          MattMatt
          Participant

            You may very well pass just by doing the tune up items that you did as College Man mentioned. If not, come on back.

            June 25, 2012 at 11:00 am #458617
            AccordAccord
            Participant

              [quote]Quoted From Beefy: _x000D_
              _x000D_
              You may very well pass just by doing the tune up items that you did as College Man mentioned. If not, come on back.

              June 26, 2012 at 11:00 am #458618
              MikeMike
              Participant

                I dont see how the tps would cause high co

                June 26, 2012 at 11:00 am #458619
                AccordAccord
                Participant

                  Quoted From Six6vetteguy:_x000D_
                  _x000D_
                  I dont see how the tps would cause high co

                  _x000D_
                  _x000D_
                  from what i have read on the e net . it sends a single to the ecu telling it if its open throttle

                  June 26, 2012 at 11:00 am #458620
                  MikeMike
                  Participant

                    Correct…but i dont see how it would cause unburnt fuel.

                    June 26, 2012 at 11:00 am #458621
                    rice400rice400
                    Participant

                      What kind of

                      June 26, 2012 at 11:00 am #458622
                      college mancollege man
                      Moderator

                        Is your base idle normal? if it is then I would say the TPS

                        June 26, 2012 at 11:00 am #458623
                        AccordAccord
                        Participant

                          [quote]Quoted From rice400: _x000D_
                          _x000D_
                          What kind of

                          June 26, 2012 at 11:00 am #458624
                          AccordAccord
                          Participant

                            [quote]Quoted From college man: _x000D_
                            _x000D_
                            Is your base idle normal? if it is then I would say the TPS

                            June 27, 2012 at 11:00 am #458625
                            EricTheCarGuy 1EricTheCarGuy
                            Keymaster

                              First, don’t replace sensors that you have no evidence are bad it’s a waste of time and money.

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